90 lines
2.1 KiB
HTML
90 lines
2.1 KiB
HTML
<!DOCTYPE html>
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<!-- xlsx.js (C) 2013-present SheetJS http://sheetjs.com -->
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<!-- vim: set ts=2: -->
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
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<title>SheetJS Firebase Dump Demo</title>
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<style>
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a { text-decoration: none }
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</style>
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</head>
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<body>
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<pre>
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<h3><a href="//sheetjs.com/">SheetJS</a> Firebase Dump Demo</h3>
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<b>Example Code</b>
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/* ... connect to firebase */
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const database = firebase.database();
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/* import workbook */
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await database.ref('foo').set(workbook);
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/* change cells */
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database.ref('foo').update({
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"Sheets/Sheet1/A1": {"t": "s", "v": "J"},
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"Sheets/Sheet1/A2": {"t": "n", "v": 5},
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});
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/* export snapshot */
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const val = await database.ref('foo').once('value').val();
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XLSX.writeFile(wb, "firebase.xlsx");
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</pre>
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<script src="xlsx.full.min.js"></script>
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<script src="https://www.gstatic.com/firebasejs/4.12.0/firebase.js"></script>
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<script>
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const Firebase = firebase;
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const config = {
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credential: {
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getAccessToken: () => ({
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expires_in: 0,
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access_token: '',
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}),
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},
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databaseURL: 'ws://localhost:5555'
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};
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/* make new workbook object from CSV */
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const wb = XLSX.read('a,b,c\n1,2,3', {type:"binary"});
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let P = Promise.resolve("sheetjs");
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/* Connect to Firebase server and initialize collection */
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P = P.then(async () => {
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Firebase.initializeApp(config);
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const database = Firebase.database();
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await database.ref('foo').set(null);
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return [database];
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});
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/* Insert entire workbook object into `foo` ref */
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P = P.then(async ([database]) => {
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await database.ref('foo').set(wb);
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return [database];
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});
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/* Change cell A1 of Sheet1 to "J" and change A2 to 5 */
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P = P.then(async ([database]) => {
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database.ref('foo').update({
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"Sheets/Sheet1/A1": {"t": "s", "v": "J"},
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"Sheets/Sheet1/A2": {"t": "n", "v": 5},
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});
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return [database];
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});
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/* Write to file */
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P = P.then(async ([database]) => {
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const val = await database.ref('foo').once('value');
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const wb = await val.val();
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XLSX.writeFile(wb, "firebase.xlsx");
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console.log(csv);
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return [database];
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});
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/* Close connection */
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P = P.then(async ([database]) => { database.app.delete(); });
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</script>
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</body>
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